%0 Journal Article %A Ivan Ĺ estak %T Optimal control of the system with subdifferential material law %J Theoretical and applied mechanics %D 1996 %P 91 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAM_1996_22_1_a6/ %G en %F TAM_1996_22_1_a6